You knew her as: The off-kilter, oft-psychic massage therapist guitarist Phoebe Buffay. Now you know her as: Phoebe Buffay. Though Kudrow has been in plenty of films, including Hilary Swank's "P.S. I Love You," as the jilted ex-wife opposite Natalie Portman in the drama "The Other Woman," with...

You knew her as: The off-kilter, oft-psychic massage therapist guitarist Phoebe Buffay. Now you know her as: Phoebe Buffay. Though Kudrow has been in plenty of films, including Hilary Swank's "P.S. I Love You," as the jilted ex-wife opposite Natalie Portman in the drama "The Other Woman," with... (Los Angeles Times / Showtime)

You knew him as: Aspiring actor Joey Tribbiani. Now you know him as: Well, Joey Tribbiani. In NBC's spinoff "Joey," he left the friendly confines of "Friends" and tried to make it on his own as an actor on the West Coast. It didn't work out for Joey, or Matt. Where you'll see him next: Not that...

You knew him as: Aspiring actor Joey Tribbiani. Now you know him as: Well, Joey Tribbiani. In NBC's spinoff "Joey," he left the friendly confines of "Friends" and tried to make it on his own as an actor on the West Coast. It didn't work out for Joey, or Matt. Where you'll see him next: Not that... (NBC / Colin Hutton/Showtime)

You knew her as: Monica Geller, clean-freak cook with a competitive edge. Now you know her as: She was tabloid editor Lucy Spiller, willing to get down and dirty for the celebrity scoop in FX's "Dirt," before she became quirky single mom Jules Cobb on "Cougar Town" (pictured) -- a show that's...

You knew her as: Monica Geller, clean-freak cook with a competitive edge. Now you know her as: She was tabloid editor Lucy Spiller, willing to get down and dirty for the celebrity scoop in FX's "Dirt," before she became quirky single mom Jules Cobb on "Cougar Town" (pictured) -- a show that's... (Warner Bros. / Adam Larkey/ABC)

You knew him as: Ross Geller, the angst-ridden, thrice-divorced paleontologist and brother of Monica. Now you know him as: Despite a voice role in "Madagascar" (Melman) and guest starring on comedies like "30 Rock" and "Entourage," as far as TV and film roles go he's still best-known as Ross....

You knew him as: Ross Geller, the angst-ridden, thrice-divorced paleontologist and brother of Monica. Now you know him as: Despite a voice role in "Madagascar" (Melman) and guest starring on comedies like "30 Rock" and "Entourage," as far as TV and film roles go he's still best-known as Ross.... (Ollie Upton / Picturehouse)